Commodity resins, like acrylonitrile butadiene styrene, and low-density polyethylene, lack the chemical, thermal and creep resistance, dimensional stability, and different properties needed in precision gears. Their use is usually restricted to fundamental, low-load or low-speed gears. The Celanese Plastic Gear Evaluation and Research unit (the P-GEAR unit) is an effective example of take a look at tools that generates such knowledge. The complexity of a gear application implies that the characterization carried automotive gears out by the unit for a quantity of plastics must be confirmed by the designer in the area before the designer makes a last polymer selection.…
